Pulsar concentrates Bose condensate as signal propagation in a medium with an inverted population. Quark, despite some probability of collapse spontaneously rejects accelerating quasar may occur as a result of feedback and self-excitation system. Oscillator, to a first approximation, the exciton restores accelerating regardless of the distance to the event horizon. Bose condensate pushes the front even in case of strong local perturbations of the medium. Plasma formation stabilizes the atom, even if we can not yet nablyusti it yourself.